Smokejack



My 7, 1929. H. L. CURRIE ,712, 22

sMOKEJAQK Filed March 19. 1928 2 Sheets-Sheet 1 197 ORNEY T.

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Patented May 7, 1929. 1

UNITED STATES HOMER LINDSAY GURRIE, OF

TORONTO, ONTARIO, CANADA.

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Application filed March 19,

My invention relates to improvements in smoke acks, and the object of the invention is to provide means for elfectively overcoming any leakage between the stacks and the lower end of the lower section of the jack, and it consists essentially of a stationary jack member extending from the main duct, an in termediate jack member havinga ball and socket type joint therebetween, a universal support for the intermediate section, a lower section telescopically fitting within the inter mediate section and provided at its lower end witha spherical end with which the upper end of the smoke stack of the engine is adapted to engage as hereinafter more particularly explained by the followingspecification.

Fig. 1 represents aportion of an engine house in section showing the main smoke ductand my jack connected therewith.

Fig. 2 is an enlarged sectional view through the upper portion of the smoke jack showing the universal joint connection between the upper stationary section of the jack and the intermediate section.

Fig. 3 is an inverted plauview of the parts shown in Figure 2.

Fig. 4 shows an alternative construction.

In the drawing like characters of reference indicate correspondingparts in each ligure.

1 indicates a portion of an engine house in which is supported in the usual manner the main smoke duct 2. 3 is an upper tubular section of the jack which extends through an orifice 4; in the lower wall of the main duct 2. The upper section 3 is supported in i the orilice by the opposing members 5 and .6 secured to thewall 2* of the main duct and the brackets 7 connected by bolts 8 which pass through the members 5 and 6 and wall 2".

Within the section 3 is located a butterfly damper 9 of ordinary type. The lower end of the section 3 is provided with a segmental spherical portion 10.

11 is the intermediate portion of the jack provided with diametrically opposite spin dles 13* and 13 is a gimbal ring provided with diametrically extending spindles 14 set at right angles to the spindles 12 and journallcd in stationary bearings 15 and 16 carried by the depending brackets 17 and 18 secured to a suitable portion of the engine house structure. 19 is the lower member of the jack which telescopically fits the intermediate section 11 and is provided at its lower end with a segmental spherical portion 20 1923. Serial at. 262,783.

into which the upper end of the Smokestack of the engine fits. The lower section 19 and intermediate section 11 are connected together by a chain 21 to permit of free longitudinal movement of the lower section within the intermediate section.

22 and 23 arecounterwe'ights. The counterweight22 is connected by a cord or cable Qlpassing around a sheave to the lower end of thelower jackmeinber 19, the other counterweight being connected by a separate cable 24" passingover othershcaves 25* and 26 and passing in an. angular direction to the sheave 25 and from thence downwardto the opposite side of the lower end of the lower jack member 19.

It will thus be seen that when an engine travels into the engine house tobe engaged by the jack. the jack may be swung freely either backwardly or forwardly or laterally to either side so as to compensate for the position of the engine stack both in a posi tion longitudinal of the track and in a position transversely of the track con'ipensating for any offset of the upper end of the engine stack due to the sinking of the engine either to one side or the other due to faulty springs.

When the engine is in position the lower section 19 of the jack is lifted onto the top of the engine stack so that the upper end of such stack engages the interior surface of the spherical portion 20.

It will be readily understood that no matter what the position of the engine stack is either longitudinally or laterally of the track 1 it will fit tightly such interiorsurface.

The upper end of the intermediate member 11 also forms a smoke tight connection with the inner face of the spherical portion 10 of the upper section of the jack no mat ter in what position the intermediate member is swung.

In Figure 4t I have shown a construction adaptable for use where a smoke exhaust sys tem is not employed. This construction is similar to that previously described with the exception that the smoke stack or upper tubular section is extended through the roof of the engine house 1 instead of being connected to the smoke duct 2. i

From this description it will be seen that I i have devised a very simple device which will insure of a smoke tight connection always being formed between the upper end of the engine stack and the jack, and a smoke tight duct which will p the smoke from the stack to the main smoke duct and thereby preventing any chance of leakage.

What I claim as my invention is 1. In a smoke jack, the combination with the main smoke duct mounted in a suitable structure, an upper smoke jack tubular section extending through the bottom Wall of the mainsmoke duct, an intermediate tubular section and a lower tubular section telescopicallyj connected together, a universal joint support upon which the intermediate sectionis mounted, and means for forming a smoke tight joint between the upper end of the intermediate section and the lower end of the upper section. I

v I 2. In a smoke ack, the combination with the main smoke duct mountedin a suitable structure,

scopically connected together, a universal jointsupport upon which the intermediate section is mounted, means for forming a smoke tight joint between the upper end of the intermediate section and the lower end of the upper section, and comprising a segmentalspherical hollow portion forming an exan upper smoke jack tubular sec' 'tion extending through the bottom Wall of tension of the lower end of the upper tubular section, an outwardly flared portion forming the upper end of the intermediate section, such intermediate section being mounted in the universal joint support concentrically with'the segmental spherical portion of the upper tubular portion.

3. In a smoke jack, the combination with the main smoke duct mounted in a suitable structure, an upper smoke jack tubular section extending through the bottom wall of the main smoke duct, an intermediate tubular section and a lower tubular section telescopically connected together, a universal joint support upon which the intermediate section is mounted, means for formin a smoke tight joint between the upper en of the intermediate section and the lower end of the upper section, a segmental spherical portion forming an extension to the lower end of the lower section and into which the upper end of the locomotive smoke stack is adapted to fit, a flexible connection between the lower section and the intermediate section, and counterweighted means extending from each side of the lower section for adjusting the position of such lower section.

HOMER LINDSAY CURRIE. 

